Hybrid tea rose plant named ‘KORladcher’

ABSTRACT

A new and distinct variety of rose with long lasting, novel dark pink flowers, and attractive foliage with excellent disease resistance. It exhibits upright to bushy growth with abundant flowers. The new variety propagates well from cuttings and by grafting. This new and distinct variety has shown to be uniform and stable in the resulting generations from asexual propagation.

Latin name of genus and species: The botanical classification of the newrose plant is Rosa hybrida.

Variety denomination: The denomination of the new variety is‘KORladcher’.

CROSS REFERENCES AND FEDERAL R&D STATEMENT

There are no cross referenced or related applications. This variety wasdeveloped without the aid of any research grant.

BACKGROUND OF THE INVENTION

The new variety of rose plant of the present invention originated from acontrolled crossing in a breeding program of two distinct parents duringthe summer of 2002. The crossing was between an un-named seedling, theseed parent, and another un-named seedling, the pollen parent by thesame inventor.

The resulting seeds were planted during the following winter. Theresulting seedlings were evaluated and exhibited distinctive physicaland biological characteristics. The new rose plant was selected as asingle plant from the seedling beds due to its superior characteristicsand asexually propagated for further evaluation. This new anddistinctive rose variety is named ‘KORladcher’.

SUMMARY OF THE INVENTION

The new rose plant may be distinguished from its seed parent, anun-named seedling, by the following combination of characteristics:

-   -   1. ‘KORladcher’ has dark pink flowers, whereas the un-named        seedling has coral flowers.    -   2. ‘KORladcher’ has a very double petal count, whereas the        un-named seedling has a double petal count.

The new rose plant may be distinguished from its pollen parent, anun-named seedling, by the following combination of characteristics:

-   -   1. ‘KORladcher’ has a medium size flower, whereas the un-named        seedling has a small size flower.    -   2. ‘KORladcher’ has an upright to bushy habit, whereas the        un-named seedling has a compact habit.

The objective of the hybridization was to create a new and distinct roseplant with unique qualities, such as:

-   -   1. Uniform growth and flowering;    -   2. Abundant attractive, recurrent flowers;    -   3. Attractive and abundant foliage; and    -   4. Resistance to diseases encountered in landscapes and gardens.

This combination of qualities is not present in prior rose cultivarsknown to the inventor. These objectives have been substantially achievedand in that distinguish ‘KORladcher’ from all other varieties of which Iam aware.

As part of a rose development program, Tim-Hermann Kordes germinatedseeds from the aforementioned hybridization and conducted evaluationsand observations on the resulting seedlings in a controlled environmentin Offenseth-Sparrieshoop, Germany. The resulting seedlings exhibiteddistinctive physical and biological characteristics. The new rose plant‘KORladcher’ was selected in May 2003 from the seedling beds to beasexually propagated for further evaluation. The first asexualpropagation of ‘KORladcher’ was done by budding in July 2003 at theinventor's nursery in Offenseth-Sparrieshoop, Germany.

These initial and other subsequent propagations conducted in controlledenvironments demonstrate that ‘KORladcher’ reproduces true to type insuccessive generations of asexual reproduction.

BRIEF DESCRIPTION OF THE DRAWING

The accompanying color drawing shows as true as is reasonably possibleto obtain in color photographs of this type, the typical characteristicsof the buds, sepals, reproductive organs, flowers, leaves, prickles, andstems of ‘KORladcher’ taken from a 2-year-old plant growing in a nurseryin Jackson County, Oreg.

DETAILED BOTANICAL DESCRIPTION

The following is a description of ‘KORladcher’, as observed growing inJune 2013 in a nursery in Jackson County, Oreg. on plants of 2 years ofage. Color references are made using The Royal Horticultural Society(London, England) Colour Chart, 2001 except where common terms of colorare used.

For a comparison, several physical characteristics of the rose variety‘KORcoluma’, a rose variety from the same inventor described andillustrated in U.S. Plant Pat. No. 17,047 and issued on Aug. 22, 2006are compared to ‘KORladcher’ in Chart 1.

CHART 1 Characteristic ‘KORladcher’ ‘KORcoluma’ Flower color Dark pinkRed Petal count 55-65 25-30 Plant habit Upright to bushy Compact andbushy

-   Parents:    -   -   Seed parent.—An un-named seedling.        -   Pollen parent.—An un-named seedling.-   Classification:    -   -   Botanical classification.—Rosa hybrida ‘KORladcher’.        -   Commercial classification.—Hybrid Tea rose.

FLOWER AND FLOWER BUD

-   Blooming habit: Continuous. Prolific.-   Flower bud:    -   -   Size.—Upon opening, 23-30 mm in length from base of            receptacle to distal end of bud and 18 mm diameter at its            widest point.        -   Bud form.—Long. Pointed ovoid.        -   Bud color.—As sepals first unfold, bud color is Red Group            53B. When ¼ open, the upper surface of petals is between Red            Group 51A and Red Group 53C, and the lower surface is Red            Group 53C.        -   Sepals.—Color: Upper surface Yellow-Green Group 146D. Lower            surface Yellow-Green Group 146C. Intonations of            Greyed-Purple Group 185A present on 85% of surface. Size:            Average 25-35 mm (l)×12-15 mm (w). Shape: Moderate            foliaceous appendages on 3 of the five sepals. Apex:            Cirrose. Base: Flat at union with receptacle. Quantity:            Five. Surface texture: Upper side: Heavily pubescent. Lower            surface: Lightly pubescent. Margins: Pubescent with            occasional stipitate glands. Stipitate glands: Limited.-   Flower bloom:    -   -   Fragrance.—Light.        -   Duration.—On the plant 3-6 days. As a cut flower, 4-5 days.            Senesced petals drop away cleanly.        -   Size.—Medium for a hybrid tea rose. When open, the average            flower diameter is 100 mm and the average flower height is            60 mm.        -   Form.—Shape of flower when viewed from the side: Upon            opening, upper part: Convex. Upon opening, lower part:            Flattened convex. Open flower, upper part: Flattened convex.            Open flower, lower part: Flattened convex.        -   Color.—Upon opening, petals: Outermost petals: Outer Side:            Red-Purple Group N57C. Inner Side: Red-Purple Group 58B.            Innermost petals: Outer Side: Red Group 55A. Inner Side: Red            Group 52B. Upon opening, basal petal spots: Basal petal            spot, outermost petals: Outer Side: Green-Yellow Group 1C.            Inner Side: Green-Yellow Group 1B. Basal petal spot,            innermost petals: Outer Side: Green-Yellow Group 1A. Inner            Side: Green-Yellow Group 1A. After opening, petals:            Outermost petals: Outer Side: Red-Purple Group 61C. Inner            Side: Red-Purple Group 58B with occasional center stripe of            White Group 155C. Innermost petals: Outer Side: Red-Purple            Group 61D. Inner Side: Red-Purple Group 58B. After opening,            basal petal spots: Basal petal spot, outermost petals: Outer            Side: White Group N155C. Inner Side: Green-White Group 157C.            Basal petal spot, innermost petals: Outer Side: White Group            N155C. Inner Side: Green-White Group 157B.-   General tonality: On open flower Red Group 53D. No change in the    general tonality at the end of the 4^(th) day. Afterwards, general    tonality is Red-Purple Group 62C.-   Petals:    -   -   Petal count.—Very Double.        -   Average range.—Approximately 55-65 petals under normal            conditions.        -   Petal reflex.—Petals reflex slightly.        -   Petal margin.—Entire.        -   Petal shape.—Obovate. Apex: Obtuse. Base: Obtuse.        -   Petal size.—40-65 mm (l)×50-70 mm (w).        -   Thickness.—Average.        -   Petal arrangement.—Not formal.        -   Texture.—Upper and Lower Surfaces: Slightly rugose.-   Petaloids:    -   -   Petaloid count.—Average of 8-12 per flower.        -   Petaloid size.—10-35 mm (l)×5-35 mm (w).        -   Petaloid color.—Inner side: Red-Purple Group N57A. Outer            side: Red-Purple Group 58C.        -   Petaloid texture.—Outer and Inner Sides: Leathery.        -   Margins.—Entire to indented, with some highly irregular.        -   Petaloid shape.—Obovate, spatulate and oblanceolate. Apex:            Acute to obtuse. Base: Attenuate.-   Reproductive organs:    -   -   Pistils.—Abundant. Approximately 70 present. Stigmas:            Location: Slightly superior in position to anthers. Color:            Greyed-Yellow Group 160B. Styles: Length: About 15 mm long.            Color: Green-White Group 157A. Intonations: Red-Purple Group            N66A.        -   Stamens.—Approximately 90 on average and regularly arranged.            Anthers: Size: Average 3 mm (l)×0.5-1.0 mm (w). Color:            Yellow-Orange Group 20B. Pollen: Generally present. Color:            Greyed-Orange Group 163A. Filaments: Color: Yellow Group 2A.            Length: 8 mm.        -   Receptacle.—Surface: Lacking fine hairs and stipitate            glands. Color: Yellow-Green Group 146C. Intonations:            Greyed-Purple Group 187B. Shape: Mostly funnel-shaped.            Texture: Smooth. Size: 9-15 mm (h)×15-18 mm (w).        -   Peduncle.—Surface: Glabrous. Length: 50-75 mm average            length. Diameter: 4-5 mm average diameter. Color:            Yellow-Green Group 146C. Intonations: Greyed-Purple Group            183A to Greyed-Purple Group 183C. Strength: Strong. Borne:            Singularly.        -   Pedicel.—Surface: Glabrous. Length: 50-75 mm average length.            Diameter: 4-5 mm average diameter. Color: Yellow-Green Group            146C. Intonations: Greyed-Purple Group 183A to Greyed-Purple            Group 183C. Strength: Strong. Borne: Singularly.

THE PLANT

-   Growth: Moderately vigorous.-   Plant habit: Upright to bushy. When grown as a field plant, the    average plant height is 120 cm and the average plant width is 80 cm.-   Stems:    -   -   Stem color.—Young wood: Yellow-Green Group 146B. Older wood:            Yellow-Green Group 146B.        -   Intonations.—Greyed-Purple Group 183B prevalent on new wood.        -   Stem surface texture.—Young wood: Smooth. Older wood:            Smooth.-   Prickles: Present.    -   -   Incidence.—Average of 10 per each 10 cm of stem.        -   Size.—Average length: 5 mm.        -   Color.—Immature prickles: Greyed-Red Group 182A to            Greyed-Red Group 182B. Mature prickles: Greyed-Yellow Group            161C.        -   Shape.—Concave.        -   Texture.—Smooth.-   Leaves: Normally 5 leaflets on normal leaves in middle of the stem.    -   -   Venation pattern.—Pyramidal net pattern.        -   Leaf size.—150-180 mm (l)×110-130 mm (w).        -   Abundance.—Average.        -   Texture.—Upper Surface: Smooth. Lower Surface: Smooth.        -   Leaflets.—Size: Average size of the terminal leaflet is 70            mm (l)×35 mm (w). Shape: Ovate. Base: Broadly obtuse. Apex:            Acute. Margins: Serrated. Surface: Upper side of leaflet:            Semi-glossy. Under side of leaflet: Matte. Texture: Upper            side of leaflet: Smooth. Under side of leaflet: Smooth.            Color, mature foliage: Upper Leaflet Surface: Yellow-Green            Group 147A. Lower Leaflet Surface: Yellow-Green Group 147B.            Color, juvenile foliage: Upper Leaflet Surface: Yellow-Green            Group 146A. Lower Leaflet Surface: Yellow-Green Group 146B.            Anthocyanin intonation: Greyed-Red Group 178A. Location: On            juvenile foliage, particularly along leaflet margins.            Arrangement: Odd pinnate. Venation: Reticulate.-   Stipules:    -   -   Size.—25 mm (l)×7 mm (w).        -   Stipule color.—Yellow-Green Group 146C.        -   Anthocyanin.—Greyed-Red Group 181B present only on juvenile            foliage.        -   Stipitate glands.—Limited numbers along margin.        -   Texture.—Smooth.        -   Shape.—Apex: Apiculate. Base: Flat.-   Petiole:    -   -   Length.—Average 20-25 mm.        -   Diameter.—Average 1-1.5 mm.        -   Petiole color.—Yellow-Green Group 146A. Underneath:            Yellow-Green Group 146B.        -   Margins.—Limited numbers of stipitate glands.        -   Anthocyanin.—Greyed-Purple Group 187B on juvenile foliage.        -   Prickles.—Present.        -   Texture.—Upper side: Leathery. Lower side: Smooth.-   Petiole rachis:    -   -   Length.—Average 55 mm.        -   Diameter.—Average 2 mm.        -   Color.—Yellow-Green Group 146C. Anthocyanin present on            juvenile tissue: Greyed-Purple Group 187B.        -   Margins.—Very limited stipitate glands.        -   Prickles.—A few small prickles underneath at leaflet            attachment.        -   Texture.—Smooth.-   Hips/seed formation: None observed.-   Winter hardiness: To date, the variety has been grown successfully    in Zone 6A.-   Disease resistance: Excellent resistance to Powdery mildew    (Sphaerotheca pannosa) and blackspot (Diplocarpon rosae) diseases    under normal growing conditions in Jackson County, Oreg.

I claim:
 1. A new and distinct variety of rose plant, as described andillustrated herein.